Senior Security Systems Engineer
CACI International2 days ago
Base Salary
$108k - $228k/yr
Responsibilities
- Refine, enhance, maintain, profile, analyze, and optimize software applications and their supporting system stack.
- Design and maintain automated system builds and configuration using Ansible, Python, and shell scripting.
- Configure, harden, and maintain RHEL 8 systems, including SELinux policies and cybersecurity scanning.
- Support and extend IdM/FreeIPA and PKI infrastructure.
- Contribute to ESXi and KVM virtualization environments and associated networking.
- Create user and administrative documentation for contract requirements.
- Interact with customers to capture defect reports and enhancement requests and prioritize them for future releases.
- Travel onsite periodically to integrate systems, apply updates, and support deployments.
Requirements
- Bachelor’s degree or higher in Computer Science, Computer Engineering, or a related technical field, or equivalent relevant experience.
- At least 7 years of systems engineering or related experience.
- U.S. citizenship and a minimum Secret security clearance, with the ability to obtain TS/SCI clearance.
- Strong Unix/Linux and RHEL 8 experience, Python programming, Bash or shell scripting, and Ansible configuration-management skills.
- Strong experience with IdM or FreeIPA and practical knowledge of PKI concepts and implementation.
- Proficiency with networking, virtualization platforms including ESXi and KVM, software design concepts, and hypervisor configuration.
- Basic-to-intermediate understanding of SELinux.
- Preferred qualifications include experience with GitLab Pipelines, GitHub Actions, Jenkins, CircleCI, or similar CI/CD systems; BIOS, UEFI, or PXE boot processes; Golang, TypeScript, C, or C++; and cybersecurity scanning and hardening in enclave or classified environments.
Benefits
- Full-time regular employment with healthcare, wellness, financial, retirement, family support, continuing education, and time-off benefits.
- Flexible time off and learning and development resources.
- Continental U.S. travel of up to 10%.
- The position supports classified customer environments and requires onsite deployment support as needed.
Tech Stack
About CACI International
CACI International is a public government contractor that delivers enterprise IT, cybersecurity, electronic warfare, space, and intelligence solutions to U.S. defense, intelligence, and federal civilian customers. It provides systems engineering, software and data services, and mission support across C4ISR and business systems, primarily through long-term government contracts. Founded in 1962 and headquartered in Reston, Virginia, CACI trades on the NYSE under the ticker CACI.